Boston – Preclinical data for PF-06463922 (Pfizer), a next generation ALK inhibitor, with potency for all known Crizotinib ALK resistant mutants and ability to cross the blood brain barrier was presented today at the 2013 International Conference on Molecular Targets and Cancer Therapeutics co-hosted by the American Association for Cancer Research (AACR), the National Cancer Institute (NCI) and the European Organization for Research and Treatment of Cancer (EORTC).

In addition to being a competitor to other next-generation ALK inhibitors in development such as AP26113 (Ariad), LDK378 (Novartis) and alectinib (Roche/Chugai), PF-06463922 shows activity in both crizotinib-naive and crizotinib-resistant cells, so could end up being a replacement for crizotinib (Xalkori) front-line if clinical results confirm preclinical efficacy.